1 files changed, 13 insertions, 0 deletions
diff --git a/worker/types/thread.go b/worker/types/thread.go
index 48e4a00..7c0cc5b 100644
--- a/worker/types/thread.go
+++ b/worker/types/thread.go
@@ -3,6 +3,7 @@ package types
 import (
 	"errors"
 	"fmt"
+	"sort"
 )
 
 type Thread struct {
@@ -120,3 +121,15 @@ func (s ByUID) Less(i, j int) bool {
 	maxUID_j := getMaxUID(s[j])
 	return maxUID_i < maxUID_j
 }
+
+func SortThreadsBy(toSort []*Thread, sortBy []uint32) {
+	// build a map from sortBy
+	uidMap := make(map[uint32]int)
+	for i, uid := range sortBy {
+		uidMap[uid] = i
+	}
+	// sortslice of toSort with less function of indexing the map sortBy
+	sort.Slice(toSort, func(i, j int) bool {
+		return uidMap[getMaxUID(toSort[i])] < uidMap[getMaxUID(toSort[j])]
+	})
+}